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27 #include "core/html/HTMLVideoElement.h"
29 #include "bindings/core/v8/ExceptionState.h"
30 #include "core/CSSPropertyNames.h"
31 #include "core/HTMLNames.h"
32 #include "core/dom/Attribute.h"
33 #include "core/dom/Document.h"
34 #include "core/dom/ExceptionCode.h"
35 #include "core/dom/shadow/ShadowRoot.h"
36 #include "core/frame/Settings.h"
37 #include "core/html/HTMLImageLoader.h"
38 #include "core/html/canvas/CanvasRenderingContext.h"
39 #include "core/html/parser/HTMLParserIdioms.h"
40 #include "core/rendering/RenderImage.h"
41 #include "core/rendering/RenderVideo.h"
42 #include "platform/UserGestureIndicator.h"
43 #include "platform/graphics/GraphicsContext.h"
44 #include "platform/graphics/gpu/Extensions3DUtil.h"
45 #include "public/platform/WebCanvas.h"
46 #include "public/platform/WebGraphicsContext3D.h"
50 using namespace HTMLNames;
52 inline HTMLVideoElement::HTMLVideoElement(Document& document)
53 : HTMLMediaElement(videoTag, document)
55 if (document.settings())
56 m_defaultPosterURL = AtomicString(document.settings()->defaultVideoPosterURL());
59 PassRefPtrWillBeRawPtr<HTMLVideoElement> HTMLVideoElement::create(Document& document)
61 RefPtrWillBeRawPtr<HTMLVideoElement> video = adoptRefWillBeNoop(new HTMLVideoElement(document));
62 video->ensureUserAgentShadowRoot();
63 video->suspendIfNeeded();
64 return video.release();
67 void HTMLVideoElement::trace(Visitor* visitor)
69 visitor->trace(m_imageLoader);
70 HTMLMediaElement::trace(visitor);
73 bool HTMLVideoElement::rendererIsNeeded(const RenderStyle& style)
75 return HTMLElement::rendererIsNeeded(style);
78 RenderObject* HTMLVideoElement::createRenderer(RenderStyle*)
80 return new RenderVideo(this);
83 void HTMLVideoElement::attach(const AttachContext& context)
85 HTMLMediaElement::attach(context);
88 if (shouldDisplayPosterImage()) {
90 m_imageLoader = HTMLImageLoader::create(this);
91 m_imageLoader->updateFromElement();
93 toRenderImage(renderer())->imageResource()->setImageResource(m_imageLoader->image());
97 void HTMLVideoElement::collectStyleForPresentationAttribute(const QualifiedName& name, const AtomicString& value, MutableStylePropertySet* style)
99 if (name == widthAttr)
100 addHTMLLengthToStyle(style, CSSPropertyWidth, value);
101 else if (name == heightAttr)
102 addHTMLLengthToStyle(style, CSSPropertyHeight, value);
104 HTMLMediaElement::collectStyleForPresentationAttribute(name, value, style);
107 bool HTMLVideoElement::isPresentationAttribute(const QualifiedName& name) const
109 if (name == widthAttr || name == heightAttr)
111 return HTMLMediaElement::isPresentationAttribute(name);
114 void HTMLVideoElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
116 if (name == posterAttr) {
117 // Force a poster recalc by setting m_displayMode to Unknown directly before calling updateDisplayState.
118 HTMLMediaElement::setDisplayMode(Unknown);
119 updateDisplayState();
120 if (shouldDisplayPosterImage()) {
122 m_imageLoader = HTMLImageLoader::create(this);
123 m_imageLoader->updateFromElement(ImageLoader::UpdateIgnorePreviousError);
126 toRenderImage(renderer())->imageResource()->setImageResource(0);
128 // Notify the player when the poster image URL changes.
129 if (webMediaPlayer())
130 webMediaPlayer()->setPoster(posterImageURL());
132 HTMLMediaElement::parseAttribute(name, value);
136 bool HTMLVideoElement::supportsFullscreen() const
138 if (!document().page())
141 if (!webMediaPlayer())
147 unsigned HTMLVideoElement::videoWidth() const
149 if (!webMediaPlayer())
151 return webMediaPlayer()->naturalSize().width;
154 unsigned HTMLVideoElement::videoHeight() const
156 if (!webMediaPlayer())
158 return webMediaPlayer()->naturalSize().height;
161 bool HTMLVideoElement::isURLAttribute(const Attribute& attribute) const
163 return attribute.name() == posterAttr || HTMLMediaElement::isURLAttribute(attribute);
166 const AtomicString HTMLVideoElement::imageSourceURL() const
168 const AtomicString& url = getAttribute(posterAttr);
169 if (!stripLeadingAndTrailingHTMLSpaces(url).isEmpty())
171 return m_defaultPosterURL;
174 void HTMLVideoElement::setDisplayMode(DisplayMode mode)
176 DisplayMode oldMode = displayMode();
177 KURL poster = posterImageURL();
179 if (!poster.isEmpty()) {
180 // We have a poster path, but only show it until the user triggers display by playing or seeking and the
181 // media engine has something to display.
182 // Don't show the poster if there is a seek operation or
183 // the video has restarted because of loop attribute
184 if (mode == Video && oldMode == Poster && !hasAvailableVideoFrame())
185 mode = PosterWaitingForVideo;
188 HTMLMediaElement::setDisplayMode(mode);
190 if (renderer() && displayMode() != oldMode)
191 renderer()->updateFromElement();
194 void HTMLVideoElement::updateDisplayState()
196 if (posterImageURL().isEmpty())
197 setDisplayMode(Video);
198 else if (displayMode() < Poster)
199 setDisplayMode(Poster);
202 void HTMLVideoElement::paintCurrentFrameInContext(GraphicsContext* context, const IntRect& destRect) const
204 if (!webMediaPlayer())
207 WebCanvas* canvas = context->canvas();
208 SkXfermode::Mode mode = WebCoreCompositeToSkiaComposite(context->compositeOperation(), context->blendModeOperation());
209 webMediaPlayer()->paint(canvas, destRect, context->getNormalizedAlpha(), mode);
212 bool HTMLVideoElement::copyVideoTextureToPlatformTexture(WebGraphicsContext3D* context, Platform3DObject texture, GLint level, GLenum internalFormat, GLenum type, bool premultiplyAlpha, bool flipY)
214 if (!webMediaPlayer())
217 if (!Extensions3DUtil::canUseCopyTextureCHROMIUM(internalFormat, type, level))
220 return webMediaPlayer()->copyVideoTextureToPlatformTexture(context, texture, level, internalFormat, type, premultiplyAlpha, flipY);
223 bool HTMLVideoElement::hasAvailableVideoFrame() const
225 if (!webMediaPlayer())
228 return webMediaPlayer()->hasVideo() && webMediaPlayer()->readyState() >= blink::WebMediaPlayer::ReadyStateHaveCurrentData;
231 void HTMLVideoElement::webkitEnterFullscreen(ExceptionState& exceptionState)
236 if (!supportsFullscreen()) {
237 exceptionState.throwDOMException(InvalidStateError, "This element does not support fullscreen mode.");
244 void HTMLVideoElement::webkitExitFullscreen()
250 bool HTMLVideoElement::webkitSupportsFullscreen()
252 return supportsFullscreen();
255 bool HTMLVideoElement::webkitDisplayingFullscreen()
257 return isFullscreen();
260 void HTMLVideoElement::didMoveToNewDocument(Document& oldDocument)
263 m_imageLoader->elementDidMoveToNewDocument();
264 HTMLMediaElement::didMoveToNewDocument(oldDocument);
267 unsigned HTMLVideoElement::webkitDecodedFrameCount() const
269 if (!webMediaPlayer())
272 return webMediaPlayer()->decodedFrameCount();
275 unsigned HTMLVideoElement::webkitDroppedFrameCount() const
277 if (!webMediaPlayer())
280 return webMediaPlayer()->droppedFrameCount();
283 KURL HTMLVideoElement::posterImageURL() const
285 String url = stripLeadingAndTrailingHTMLSpaces(imageSourceURL());
288 return document().completeURL(url);
291 KURL HTMLVideoElement::mediaPlayerPosterURL()
293 return posterImageURL();
296 PassRefPtr<Image> HTMLVideoElement::getSourceImageForCanvas(SourceImageMode mode, SourceImageStatus* status) const
298 if (!hasAvailableVideoFrame()) {
299 *status = InvalidSourceImageStatus;
303 IntSize intrinsicSize(videoWidth(), videoHeight());
304 OwnPtr<ImageBuffer> imageBuffer = ImageBuffer::create(intrinsicSize);
306 *status = InvalidSourceImageStatus;
310 paintCurrentFrameInContext(imageBuffer->context(), IntRect(IntPoint(0, 0), intrinsicSize));
312 *status = NormalSourceImageStatus;
313 return imageBuffer->copyImage(mode == CopySourceImageIfVolatile ? CopyBackingStore : DontCopyBackingStore, Unscaled);
316 bool HTMLVideoElement::wouldTaintOrigin(SecurityOrigin* destinationSecurityOrigin) const
318 return !hasSingleSecurityOrigin() || (!(webMediaPlayer() && webMediaPlayer()->didPassCORSAccessCheck()) && destinationSecurityOrigin->taintsCanvas(currentSrc()));
321 FloatSize HTMLVideoElement::sourceSize() const
323 return FloatSize(videoWidth(), videoHeight());